Share 'Brep voronoi coincident ends'

hello,trying to resolve Voronoi on a Brep to make the ends on each of the 6 faces (in this case the Brep is a box) to coincide. Everything works fine if the faces are given one by one (please see the rhino model) , some issue when the Brep is given as a whole. I have been quite careful to keep the hierarchy of the datastructures consistent but I can't figure out why the points extracted from the…